• The flag of Friesland
• General feeling of unsafety in Friesland
• Statistics about Friesland
• Pros and Cons of Friesland
• A beautiful equation
• R-code, displayed buyt not executed
• Cached R-code
• R-code, executed, but not displayed
• Reference list

\[ \begin{aligned} \bar{y}_{residents} &= \frac{\sum^{n}_{i = 1}y_i}{N}\\ &= \frac{652506}{18}\\ &= 36250.33 \end{aligned} \]

friesland_dat %>%
  filter(residents >= 10000) %>%
  summarise("Big Municipalities" = n())

## [1] 18

## [1] 3

##                       Municipality Number.of.residents Size.in.m2
## 1                    Achtkarspelen               27875     102.23
## 2                          Ameland                3785      59.11
## 3          Dantumadeel/Dantumadiel               18977      84.66
## 4 De Friese Meren/De Fryske Marren               51856     351.29
## 5                        Harlingen               15878      24.96
## 6                       Heerenveen               50859     190.09

## Wikipedia (2021). "Tabel van gemeenten in Friesland." <URL:
## https://nl.wikipedia.org/wiki/Tabel_van_gemeenten_in_Friesland>.
## 
## Statline (2020). "(On)veiligheidsbeleving; regio." <URL:
## https://opendata.cbs.nl/#/CBS/nl/dataset/81877NED/table?ts=1638894099292>.